As Taylor Swift's "Shake it Off" returns to no. 1 on the Top 50, and her brand new album 1989 debuts at no. 1 on the Rising 20, the country-pop singer becomes the 7th artist to top both charts at the same time.

The last time something like this happened? Just last week, when Jessie J's "Bang Bang" and 'Sweet Talker' topped the Top 50 and Rising 20, respectivley. This reign lasted for two weeks. Prior to that, the only other artists to achieve this are Jay Z, Eminem, Beyonce, Shakira, and Meghan Trainor.

Taylor isn't just making history on the Top 50 and Rising 20; the "Shake it Off" singer spends a sixth week atop the Digital Songs chart, tying MAGIC!'s record. If "Shake" can spend one more week at no. 1, the throne is hers. She's close to doing the same thing on Streaming Songs, as "Shake" spends a fifth week at no. 1. Next week will tie the record.

Below Swift's ascent on the Top 50, "Bang Bang" falls to no. 2, and Meghan Trainor's "All About That Bass" holds at no. 3. Both songs are chart-toppers, spending three and four weeks at no. 1, respectivley. Next comes Tove Lo, who's "Habits (Stay High)" finds a new peak position at no. 4. "Habits" also tops the Adult Contemporary Songs chart for a third week.

Finishing out our all-female top five is Iggy Azalea and Rita Ora's "Black Widow", which sinks one spot from no. 4, where it was last week. However, it still tops the Hip-Hop Songs chart for a fifth week, on which Azalea's own "Fancy" spends an astonishing 29th week in the top five. "Fancy" held the no. 1 spot for a record-breaking 17 weeks from May to August of this year.

New records and ties this week:

As mentioned above, Iggy Azalea's "Fancy" continues its streak as the longest-charting hit on the Hip-Hop Songs chart. Next week will mark its 30th week on chart.

Jeremih and YG tie Jason Derulo's record for the most weeks at no. 1 on the R&B Songs chart. The "Don't Tell 'Em" duo spends an impressive 10th week at no. 1, achieving the same feat as Jason Derulo and Snoop Dogg, earlier this summer.

Maroon 5's "Maps" ties the record for the longest-charting hit on the Rock Songs chart, with 20 weeks behind them. The only other songs to achieve this are Passenger's "Let Her Go" and Paramore's "Ain't it Fun".

Luke Bryan bests out Jamie Lynn Spears for the longest-charting hit on the Country Songs chart. "Play it Again" rocks out for a 24th week this week.

Until Disclosure and Sam Smith's "Latch" falls off the Dance Songs chart, it will hold the record for the longest-charting hit on that chart.

Finally, Sia's "Chandelier" continues its lead as the longest-charting hit on the Streaming Songs chart, with 23 weeks.

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